3721974

Information

• Patent Grant
• 3721974

• References
• Source

• Patent Number

  3,721,974

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1973
  51 years ago

• CPC

  • G09G3/24 - using incandescent filaments
  • G09F9/307 - being incandescent filaments

• US Classifications

  • 345 - Computer graphics processing and selective visual display systems
  • 178 - Telegraphy
  • 235 - Registers